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Your search keyword '"Cosentino, Isabel Oliveira"' showing total 19 results
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19 results on '"Cosentino, Isabel Oliveira"'

1. Reproductive seasonality of hair rams under tropical conditions: an alternative for non-seasonal lamb production?

Author

de Sá Geraldo, Arnaldo, Pinto, Pedro Henrique Nicolau, da Silva Carvalho, Ana Beatriz, da Costa, Marta Maria Campos Pereira, Santos, Juliana Dantas Rodrigues, Taira, Augusto Ryonosuke, Cosentino, Isabel Oliveira, de Figueiredo, Bruna Ramalho Rigaud, Balaro, Mário Felipe Alvarez, Ungerfeld, Rodolfo, and Brandão, Felipe Zandonadi

Published
2024
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2. Biostimulation with the ram effect increases the follicle recruitment, ovulatory diameter, and embryo viability rate in superovulated ewes

Author

Taira, Augusto Ryonosuke, Brandão, Felipe Zandonadi, Brair, Viviane Lopes, Cosentino, Isabel Oliveira, Cardoso Leal, Felipe Seabra, Sarzedas Ribeiro, Ana Clara, Alvarez Balaro, Mário Felipe, Tavares Pereira Batista, Ribrio Ivan, Gonçalves Souza-Fabjan, Joanna Maria, Ferreira da Fonseca, Jeferson, and Ungerfeld, Rodolfo

Published
2022
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3. Ovarian activity in dairy Saanen goats subjected to a short-term ovulation induction protocol and a single injection of lecirelin (GnRH analog) given 28 h or 34 h after progestin pre-treatment

Author

Cosentino, Isabel Oliveira, Balaro, Mario Felipe Alvarez, Leal, Felipe Seabra Cardoso, Bade, Ana Luiza Cunha, Barbosa, Lucas de Figueiredo Cardoso, Gonçalves, Fernanda Martins, Cortat de Souza, Paula Renata, Pereira, Paulo Victor dos Santos, Bartlewski, Pawel M., and Brandão, Felipe Zandonadi

Published
2020
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4. The male effect associated with prostaglandins and reproductive outcomes in photo‐stimulated Saanen goats during the non‐breeding season.

Author

Cosentino, Isabel Oliveira, Balaro, Mario Felipe Alvarez, Leal, Felipe Seabra Cardoso, de Figueiredo Cardoso Barbosa, Lucas, Gonçalves, Fernanda Martins, and Brandão, Felipe Zandonadi

Subjects
*REPRODUCTIVE health, *GOATS, *PROSTAGLANDINS, *CORPUS luteum, *ARTIFICIAL insemination, *FETAL ultrasonic imaging
Abstract

The efficiency of combining oestrous induction via a light program (16 h of light and 8 h of darkness for 60 days, ending on Day 0 – D0) with cloprostenol administration, followed by the male effect or not, was tested in acyclic Saanen goats during the non‐breeding season (June/2019 to January/2020). Initially, all animals (males and females) were submitted to the described light program; 60 days after its ending (D60), the females were divided into two groups, with (G1; n = 67) or without (G2; n = 61) a male effect from D60 to D75 after the light program. At D75, both groups received two cloprostenol doses (120 μg; intramuscular) 7.5 days apart (D75 and D82.5). Artificial insemination was performed at a specific time according to the oestrous onset (approximately 68.4 ± 1.2 h between the second cloprostenol dose and IA). Ultrasound scans were performed at different intervals to evaluate follicular dynamics and confirm pregnancy. At the first cloprostenol dose (D75), the proportion of does with at least a corpus luteum (CL), which indicates resumed cyclicity, was greater in G1 than in G2 (85.2% vs. 48.8%; p <.05), although no difference was found at the second dose (p >.05). The adjusted pregnancy rates (number of pregnant goats/oestrous goats) differed between G1 and G2 (21.7% vs. 42.0%; p <.05). G1 also showed a higher frequency of functional CL (based on blood flow and morphology) compared to G2 (96.9% vs. 66.7%; p <.05) at D116. A male effect using photo‐stimulated bucks after the first cloprostenol dose increased the number of does presenting CL after buck removal, and no impairment in the pregnancy rates of multiparous does was found. [ABSTRACT FROM AUTHOR]

Published
2024
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6. Reproductive seasonality of hair rams under tropical conditions: an alternative for non-seasonal lamb production?

Author

de Sá Geraldo, Arnaldo, primary, Pinto, Pedro Henrique Nicolau, additional, da Silva Carvalho, Ana Beatriz, additional, da Costa, Marta Maria Campos Pereira, additional, Santos, Juliana Dantas Rodrigues, additional, Taira, Augusto Ryonosuke, additional, Cosentino, Isabel Oliveira, additional, de Figueiredo, Bruna Ramalho Rigaud, additional, Balaro, Mário Felipe Alvarez, additional, Ungerfeld, Rodolfo, additional, and Brandão, Felipe Zandonadi, additional

Published
2023
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11. Influence of eCG and reproductive management in the resynchronization of ovulation in dairy goats

Author

Cosentino, Isabel Oliveira, primary, Balaro, Mário Felipe Alvares, additional, Silva, Polyanne Martins da, additional, Taira, Augusto Ryonosuke, additional, Santos, Juliana Dantas Rodrigues, additional, Ribeiro, Ana Clara Sarzedas, additional, Figueiredo, Bruna Ramalho Rigaud de, additional, Costa, Marta Maria Campos Pereira da, additional, Vieira, Bruno Ribeiro, additional, and Brandão, Felipe Zandonadi, additional

Published
2022
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12. Hormonal protocol used for cervical dilation in ewes does not affect morphological embryo quality but reduces recovery rate and temporarily alters gene expression

Author

Santos, Juliana Dantas Rodrigues, primary, Batista, Ribrio Ivan Tavares Pereira, additional, Ungerfeld, Rodolfo, additional, Taira, Augusto Ryonosuke, additional, Espírito Santo, Caroline Gomes do, additional, Souza‐Fabjan, Joanna Maria Gonçalves, additional, Fernandes, Daniel Andrews de Moura, additional, Balaro, Mário Felipe Alvarez, additional, Cosentino, Isabel Oliveira, additional, Brair, Viviane Lopes, additional, Pinto, Pedro Henrique Nicolau, additional, Carvalho, Ana Beatriz da Silva, additional, Fonseca, Jeferson Ferreira da, additional, and Brandão, Felipe Zandonadi, additional

Published
2021
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14. Early resynchronization protocols for goats: Progestogens can be used prior to an early pregnancy diagnosis without affecting corpus luteum functionality

Author

Cosentino, Isabel Oliveira, primary, Balaro, Mario Felipe Alvarez, additional, Leal, Felipe Seabra Cardoso, additional, Barbosa, Lucas de Figueiredo Cardoso, additional, Gonçalves, Fernanda Martins, additional, Felizardo, Gabriel Feliciano, additional, Netto, Marina Monteiro, additional, and Brandão, Felipe Zandonadi, additional

Published
2020
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15. Use of two cloprostenol administrations 11.5 days apart efficiently synchronizes oestrus in photostimulated multiparous dairy goats in the non‐breeding season

Author

Netto, Marina Monteiro, primary, Balaro, Mario Felipe Alvarez, additional, Cosentino, Isabel Oliveira, additional, Espírito Santo, Caroline Gomes, additional, Oliveira, Rodrigo Vasconcelos, additional, Souza‐Fabjan, Joanna Maria Gonçalves, additional, Brandão, Felipe Zandonadi, additional, and Fonseca, Jeferson Ferreira, additional

Published
2020
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16. Successive in vivo embryo production in Santa Inês sheep

Author

Pinto, Pedro Henrique Nicolau, primary, Balaro, Mario Felipe Alvarez, additional, Saraiva, Helena Fabiana Reis de Almeida, additional, Brair, Viviane Lopes, additional, Alfradique, Vivian Angélico Pereira, additional, Côrtes, Luana Rangel, additional, Cosentino, Isabel Oliveira, additional, Souza-Fabjan, Joanna Maria Gonçalves, additional, Fonseca, Jeferson Ferreira da, additional, and Brandão, Felipe Zandonadi, additional

Published
2020
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19. Hormonal protocol used for cervical dilation in ewes does not affect morphological embryo quality but reduces recovery rate and temporarily alters gene expression

Author

Santos, Juliana Dantas Rodrigues, Batista, Ribrio Ivan Tavares Pereira, Ungerfeld, Rodolfo, Taira, Augusto Ryonosuke, Espírito Santo, Caroline Gomes do, Souza‐Fabjan, Joanna Maria Gonçalves, Fernandes, Daniel Andrews de Moura, Balaro, Mário Felipe Alvarez, Cosentino, Isabel Oliveira, Brair, Viviane Lopes, Pinto, Pedro Henrique Nicolau, Carvalho, Ana Beatriz da Silva, Fonseca, Jeferson Ferreira da, and Brandão, Felipe Zandonadi

Abstract

Information on the impact of hormonal protocols for cervical dilation on the quality of ovine embryos is scarce. To compare the quality of embryos after cervical dilation protocol, ewes (n= 64) were allocated into either a treated group (100 μg estradiol benzoate intravenous and 0.12 mg cloprostenol intramuscularly, 12 hours before embryo collection plus 100 iu oxytocin intravenous 15 minutes before the collection procedure) or a control group (saline). Luteal function was analysed using ultrasonography and P4 measurement. Some collected embryos were frozen/thawed for gene expression, others were cultured in vitro, frozen/thawed for gene expression, and the remaining embryos were fixed for the apoptosis test (TUNEL test). The treatment reduced fluid (p=0.04) and structure (p=0.03) recovery rates, but the morphological quality, development stage, and apoptosis incidence of the embryos were not affected by treatment. The corpora lutea of the control group had greater blood perfusion (p= 0.002) and greater P4 concentrations at 6, 9, and 12 h after the treatment (p< 0.0001). The expression of BAX, BCL2, PRDX1, and HSP90genes were not affected by the treatment. However, the embryos in the treated group had fewer NANOGand OCT4transcripts than control embryos (p= 0.008; p= 0.006, respectively). After culture, there was no difference between the groups in any gene. The hormonal protocol for cervical dilation reduced the efficiency of embryo collection. In addition, the treatment induced luteolysis and a transient alteration of embryo gene expression, however there were no detectable changes in embryo morphological quality, development stage, or incidence of apoptosis.

Published
2022
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